Image enhancement techniques are used to display all or certain parts of an image to further use for a specific application. Some of the methods of image enhancement are: Histogram equalisation, unsharp mask filtering, Weiner filter, etc. Image enhancement highlights or reduces the parameters of pixels of certain values to obtain the image of desired characteristics. Journal Article is sometimes called a Scientific Article, a Peer-Reviewed Article, or a Scholarly Research Article. Together, journal articles in a particular field are often referred to as The Literature. Journal articles are most often Primary Research Articles. However, they can also be Review Articles. These types of articles have different aims and requirements. Sometimes, an article describes a new tool or method. Because articles in scientific journals are specific, meticulously cited and peer-reviewed, journal databases are the best place to look for information on previous research on your species. Without a background in the field, journal articles may be hard to understand - however, you do not need to understand an entire article to be able to get valuable information from it.